Nut-lock.



No. 683,462. Patented Out. I, l90l.

C. C. HARRELL.

NUT LOCK.

, cation fil d Feb. 26. 1901. (N9 Model.)

1- n Rms Pmns w. mom-umu, wumnmou. u. c.

UNITED STATES PATENT OFFICE.

CHARLES COPPAGE HARRELL, OF BAINBRIDGE, GEORGIA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent N 0. 683,462, dated October1, 1901.

Application filed February 26, 1901'. Serial No. 48,956. (No model.)

To to whom it may concern;

Be it known that I, CHARLES COPPAGE HAR- RELL, a citizen of the UnitedStates, residing at Bainbridge, in the county of Decatur, State ofGeorgia, have invented a certain new and useful Improvement inNut-Locks, of which the following is a specification, reference beinghad to the accompanying drawings.

This invention relates to an improvement on that class of nut and boltlocks in which the nut is so formed that its threads bite the threads ofthe bolt; and the object of this invention is to produce a lock of thischaracter which consists of the peculiar construction, arrangement, andcombinations of parts hereinafter more particularly described, and thendefinitely claimed at the end hereof.

In the drawings which accompany and form part of this application,Figure 1 is a horizontal section of part of a rail and the fishplates orangle-bars secured together by a bolt and the preferable though notnecessary embodiment of my improved nut. Fig. 2 is a top plan View. Fig.3 is a perspective, and Fig. 4 is an end, view.

Referring now to the details of the drawings by numerals, 1 representspart of the ordinary rail, and 2 and 3 the fish-plates or angle-barsusually employed on each side thereof, and through all of these ispassed the securing-bolt 4:, which may be made of any approved type. Onthe end of this bolt is my combined nut and nut-lock comprising the bodyportion formed with the screwthreaded bolt-hole 6 therein,by means ofwhich the nut is secured on the bolt. This body portion 5 is providedwith an offset part 7, which leaves a space in which is situated thespring 8,which is designed to cause the threads of the nut to bite thethreads of the bolt. This nut is preferably a malleable casting and isformed with two integral lugs 9 and 10,.between which is secured theS-shaped spring 8 by riveting the lugs over the central member of thespring, as shown in Fig. 4. It will be noticed that this S-shaped springis peculiarly shaped in that its ends normally project out of a verticalplane, so as to make great pressure between the offset end of the nutand fish-plate or angle bar. Hence when the bolt is screwed into thisnut it causes the ends of the springs to move into, or more nearly into,a vertical plane, and in doing this the nut is slightly canted, so thatthe threads therein bite against the threads of the bolt, and thusprevent it from shaking or vibrating loose.

It is believed the operation of my improved nut-lock is obvious to thoseskilled in the art, and hence no description of the operation isnecessary.

It is manifest that many changes may be made in my invention and thatany preferred form of spring may be used or any desirable way offastening the spring may be substituted for that shown. Hence any slightchange may be made in mynut-lock without departing from the fundamentalidea of my invention, which is a nut provided with an extension, underwhich extension is placed a spring which, forcing the extension awayfrom the fish-plate, causes the nut to act as a lever and bite, and thushold the parts from shaking loose; and although I have shown my deviceas applied to a railway-joint its use is not limited to such service.

What I claim as new is 1. As a new article of manufacture, a nutcomprising an extension, and a spring coacting with said extension,substantially as described.

2. As a new article of manufacture, a nut comprising an extension, aspring secured to the acting side thereof and arranged to force saidextension outward, substantially as described.

As a new article of manufacture, a nut comprising an extension, a springsecured to the acting side thereof and having a member projecting out ofthe plane of the nut, substantially as described.

4. As a new article of manufacture, a nut comprising an extension, aspring secured to the acting side thereof, said spring havingits endsprojecting out of the plane of the nut, substantially as described.

5. As a new article of manufacture, a nut comprising an extension, lugsprojecting therefrom and a spring held by said lugs, sub- In testimonywhereof I affix my signature, stantially as described. in the presenceof two Witnesses, this 24th day 6. As a new article of manufacture, anut of January, 1901. having an extension, lugs formed thereon, andCHARLES COPPAGE IIARRELL. 5 an S-shaped spring secured by said lugs and\Vitnesses:

having its ends projecting out of the plane of E. J. PERCY,

the nut, substantially as described. L. C. TOOLE.

